2Post - Santiago Rubio Robin Kirkman Experiment 2:...

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Santiago Rubio Robin Kirkman Experiment 2: Scouring: Action of Alkali on Desized Cotton and other Major Fibers September 2, 2010 I. Part 2 A. Observations: 1. The 300 mL bath prepared in step one had a brownish color and no particular smell to it. 2. After the scouring process was completed on the fabric and multifiber strip, there were many changes on the mutifiber strip. The wool and spun silk warp yarns dissolved. The Orlon 75 fibers had a mustard color to them. Nylon 6,6 fibers became a beige color. The Creslen 61 fibers turned a burnt orange color. The modacrylic fibers also became yellowish. There was some slight shrinkage on the scoured multifiber strip. 3. For the water drop test we had to determine the wettability of the different fabric swatches by counting how many seconds it took the drop to be completely absorbed. The greige fabric took longer than 60 seconds in three different areas. There was no absorbance. The three drops on the desized fabric took 20, 18, and 18 seconds to be completely absorbed. The three drops on the scoured fabric took 1, 1, and 2 seconds to be completely absorbed. In the bleached fabric, each of the three drops took less than 1 second to be completely absorbed. 4. The scoured fabric was much softer than the other fabrics. The greige fabric was the hardest and stiffest. The desized and scoured fabrics were both soft and almost alike in feel. However, the scoured fabric was slightly softer. The scoured fabric was also whiter than the desized and greige swatches. Many of the motes were removed in the scoured fabric. 5. Comparison of Scoured and Unscoured Multifiber strips: Fiber Unscoured Scoured Orlon 75 Whitish Mustard Nylon 6,6 White Beige Creslan 61 White/pale Burnt orange Modacrylic White/pale Yellowish Rest of fibers had no change in appearance (Table 1)
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2Post - Santiago Rubio Robin Kirkman Experiment 2:...

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